AR-45 upper receiver buffer

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PSA AR-45 8oz Buffer - 516446103

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Quick Overview

WARNING: This product can expose you to the chemical lead, which is known to the State of California to cause cancer and reproductive harm. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

SKU: 516446103
UPC: 516446103
MFR#: 516446103

Weight: .70 lbs

Dimensions: 6" x 2.5" x 2.5"

Buffer Weight: 8 oz

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This 8oz blowback buffer is Made in the USA and is designed for operation in a blowback build only.  This buffer features an extended length for proper bolt catch over travel.  Functions with a standard carbine buffer spring.

*When using this longer buffer, there is no need to use a buffer spacer*
SKU: 516446103
SKU 516446103
Department Manufacturing Parts
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 516446103

Questions and Answers

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Browse 2 questions Browse 2 questions and 6 answers
Would this 8 Oz buffer work good for a 10.5 in. barrel upper?
David H on Dec 4, 2018
BEST ANSWER: This is far too heavy for most applications. Even an h3 buffer is only 5.4 oz. An H2 is 4.6 oz and H1 3.8 oz. This is twice as heavy as an H1. It should be used on blowback pistol caliber ARs. Possibly even too heavy for 9mm.
What would the best weight and spring be for the 9mm b/b system? Would this require taking the weight off the BCG?
BiGDE on Jul 6, 2019
BEST ANSWER: After several 9mm builds I use the extended length buffers weighing 7 or 8 oz. This worked well in my PSA and Spikes units even with reduced power loads. I have had good results using either standard AR carbine springs or Wolf heavy springs (+15% weight.) With buffers of 5 oz or less the brass ejection distance if excessive even with reduced loads.

Reviews

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Good choice for 9mm AR
After several 9mm builds I use the extended length buffers weighing 7 or 8 oz. This has worked well in my PSA and Spikes units even with reduced power loads. I have had good results using either standard AR carbine springs or Wolf heavy springs (+15% weight.) With buffers of 5 oz or less the brass ejection distance was excessive.
October 17, 2019
Running one of these in my 9MM PCC
Good balance to a blowback 9MM... far less bark and blast.
May 4, 2018
Purchased
1 year ago

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